ANSI/CAN/UL 536:2021 STANDARD FOR SAFETY Flexible Metallic Hose1 Scope1.1 These...

国外标准2023.07.22

ANSI/CAN/UL/ULC 567:2021 JOINT CANADA-UNITED STATENATIONAL STANDARD STANDARD FOR...

国外标准2023.07.22

UL 464A STANDARD FOR SAFETY Audible Signal Appliances for GeneralSignaling Use1...

国外标准2023.07.22

UL 498F STANDARD FOR SAFETY Plugs, Socket-Outlets and Couplerswith Arcuate (Lock...

国外标准2023.07.22

QB/T 2345-1997.1范围QB/T 2345规定了测定脂肪烷基二甲基甜菜碱平均相对分子质量的填充柱气液色谱法。本标准适用于单一类型试样的测定，不适用于...

行业标准2023.07.21

CB/T 3822-1999 Adjustable chain stopper.1范围CB/T 3822规定了可调掣链器的分类要求、检验规则和标志等.CB/T...

行业标准2023.07.21

CB/T 3828-1998 Specification for exhaust silencers of marine diesel engine.1范圈CB...

行业标准2023.07.21

CB/T 3832-1999 Technical requirements for copper pipes brazing.1范围CB/T 3832规定了锕管...

行业标准2023.07.21

CB/T 3835-1999 High-pressure vane motor with crossbeam puch rod for ship.1范围CB/T...

行业标准2023.07.21

CB/T 3837-1998 Technological requirements for ship upgrading or launching relyin...

行业标准2023.07.21